Home / 219,440,490.15-302,830,806.33-120,320,986.38

Finding the Fourth Proportional to 219,440,490.15, 302,830,806.33 and 120,320,986.38

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Solution

The fourth proportional to 219,440,490.15, 302,830,806.33 and 120,320,986.38 is: 166,044,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,440,490.15 : 302,830,806.33 = 120,320,986.38 : x
  2. Step 2: Convert to fraction form
    219,440,490.15/302,830,806.33 = 120,320,986.38/x
  3. Step 3: Cross multiply
    219,440,490.15x = 302,830,806.33 × 120,320,986.38
  4. Step 4: Simplify right side
    219,440,490.15x = 36,436,901,322,740,728
  5. Step 5: Solve for x
    x = 36,436,901,322,740,728/219,440,490.15
  6. Step 6: Final answer
    x = 166,044,567.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.